核电控制棒驱动机构奥氏体不锈钢厚壁管状锻件的超声检测研究  

Research on Ultrasonic Testing of Austenitic Stainless Steel Thick Wall Tubular Forgings for Nuclear Power Control Rod Drive Mechanism

作　　者：胡海涛 米大为 薛敏 HU Haitao;MI Dawei;XUE Min(Shanghai No.1 Machine Tool Works Co.,Ltd.,Shanghai 201308,China)

机构地区：[1]上海第一机床厂有限公司,上海201308

出　　处：《无损探伤》2024年第5期16-20,共5页Nondestructive Testing Technology

摘　　要：控制棒驱动机构钩爪壳体是核电设备中的SC-1级安全部件,其在制造阶段的超声检测受限于工艺要求只能在厚壁管状锻件下进行,存在较大的检测难度。本文通过声束路径的理论分析、试块验证等方式,采用小角度斜射纵波周向检测的方法进行研究,并通过金相解剖验证缺陷检出的有效性,为推广及应用到实际工程项目中提供借鉴。The Latch Housing of the control rod drive mechanism is an SC-1 level safety component in nuclear power equipment.The ultrasonic testing during the manufacturing stage is limited by theprocess requirements and can only be carried out under thethick wall tubular forgings,which is difficulttoinspect.Through theoretical analysis of sound beam path and testblock verification,this paper conducts research on the methodofsmall angle oblique longitudinal wave circumferential detection,and verifies the effectiveness of defect detection through metallographic dissection,which providing reference for promotion and application to practical engineering projects.

关 键 词：钩爪壳体 厚壁管状锻件 超声检测 小角度斜射纵波 缺陷 

分 类 号：TG115.28[金属学及工艺—物理冶金]